How to stop the WHineing

**jacobmh27** · 08-14-2008

Connected 2 different amps my 6X9s and there is a great deal of whine. Seems like from my subs to but hard to hear because it cuts most of that out. I have heard of the Noise supressors from Radio shack any good? The 2 amps run off of 1 Positive comming from the Batt but have there own grounds going to the Shock tower on each side of the car. One goes to one side the other amp goes to the other side. Any Ideas

**gtpinsc** · 08-14-2008

yes...grount to rear tower...thats where my ground is.i get no noise the way it is.also put ur power wire to to 12v fuse box under hood.pretty sure its 12v i could be wrong.

**jacobmh27** · 08-14-2008

that is what I did and I got a lot of noise

**Toofastgs** · 08-14-2008

ground, poor shielding on cables coming from head unit to amps

**jacobmh27** · 08-14-2008

do the radioshack thungs work?

**JCG's-GTP** · 08-14-2008

Most work but it's a bandaid. I would fix the problem instead if I was you. Couple of things I would do is, run power wire and rca's on opposite side of each other, make sure your ground is on bare metal(sand down if have to) and replace you rca cables. Also I dont know where your amp is mounted but if your amp is screwed down and the screw is touching metal that an do it too. Hope you get it fixed I know how frustrating it is. I have had a TON of noise from this car. Almost as bad a a Saturn.

**jacobmh27** · 08-15-2008

I always run my RCAs on the Opposite side of the car from the power wire. THat was a llesson learned a while back. I could try different RCA Cables. The Amp is mounted to the Back of my Box and I will try sanding the paint off from under the screw for the Shock tower

**JCG's-GTP** · 08-15-2008

Btw, what kinda of amp is it? Some amps are just noise prone. And if you bought it used it could just be a bad amp. Kinda hard to say. Good luck

**jon77** · 08-15-2008

I had a killer system with JLs in my 2001 that I just sold. NO noise.

1) Always run hot and remote wires down passenger side
Run RCAs down driver side away from catalytic converter heat.

2) Never run cheap RCAs. Spend $100 and get good ones. That's where your sound comes from.

3) Get capacitor caps and run them inline between amp and battery. This will store the power you need when playing high volume and subs are hitting hard. No capacitor = weak sterios, lights blinking, excessive alternator drain which can lead to noise.

4) Ground each amp separately. You can connect the hot wire to one amp, then cut a foot or so, and go on to another amp, ect. But don't do this with the grounds. Run them separately.

Hope this helps.

**JCG's-GTP** · 08-15-2008

I disagree with your last 2 statements. Caps or batteries wont help engine whine at all. As for seperate grounds, I have run upwards to 6-8 amps from one single ground using 0gauge wire and never had an issue. Now in this car I running 3 amps atm and the all run from the rear tower bolt with no issues. But I gotta give ya props on choosing JL

**jon77** · 08-15-2008

Well, considering I installed everything myself, and no noise was present, I'm about 110% I did everything right. I didn't say caps would prevent engine noise. I was trying to say by not using them, your causing excessive drain on battery which causes the alternator to kick out juice that it's not meant to be kicking out. And yes, that can lead to noise. About the grounds. The correct way to ground is to ground each component separately. At least, that's the way we did it when I worked at Car Tronics out there in Rivergate.

**JCG's-GTP** · 08-15-2008

Ahh Cartronics... We destroyed those cars in SPL and SQ

To each his own, whatever works. But that was a few years ago... maybe someone came up with the ground everything byself concept while I was away idk. As far as alt "kicking out" juice and producing, I think cartronics mislead you. If anything the amp will malfunction or just plain shutdown but it WONT produce engine whine.... which is what this thread is about. Jacob, if you wanna ground everything seperate then have fun but don't waste your money on a lightning cap.

**archemedes** · 08-17-2008

engine whine is a ground loop, running power lines with rca's won't cause it unless running garbage (a guy who won sq finals in iasca proved that theory wrong a while ago as he had everything in a bundle to prove it) a cap can help as that is basically what a ground loop isolator is (just hook it up on the ground instead of the power) I always grounded mine together (used a distribution block even on the competition vehicles, and was the preferred method at the time) keep the grounds short as they can act as an antenna

**JCG's-GTP** · 08-17-2008

Yea I have seen ppl bundle it too but I guess I'm just a creature of habit. Couldnt agree more that RCAs are about 90% of the noise most the time. Anyways noise sucks hope you get it cleared up.

**jacobmh27** · 08-20-2008

Well I am going to get some good RCA Cables hopefully that is my problem I have kind of cheap ones now and thought that it would be OK if I ran them seperate from the Power I am running the RCA's on the Drivers side and the power on the pass side. What kind of RCA's do you recommend

**BADAZGTP** · 08-22-2008

I have cheap ones and I get no noise and have all my wires ran in a bundle. Like Arch said, keep your ground wire as short as possible. In the past I have had whine in other vehicles and moved where I had the ground a 1/4 turn on the bolt and retighten it and the whine went away. You don't have to spend 100 bucks on rca's.

**jacobmh27** · 08-25-2008

THis whine is so bad that I unplugged the RCA cables for now I am going to clean my Ground points and try that next I guess

**jacobmh27** · 08-27-2008

Well I Sanded down the paint on my two shock owers this afternoon to no help. Then I hooked one amp up the way I used to have it before I got the new desk. I found a thread on here how to make RCA's in the trunk from the wires that go to the Bose Amp and I used them before the new desk for a while and no noise out of them. So I hooked the amp up that way it works with no noise. So I guess that I am going to have to buy some better RCA Cables cause that is where it seems to be coming from. WOuld you all agree. I am going to try and just pull the deck and run an RCA away from everything eles and see if this improves. I am so sick of this damn noise!!!!!!

**jacobmh27** · 08-28-2008

THis thing is freaking killing me. I think it might be something with my Speakers now I went to check to make sure that the correct wires were on the correct posts and I got shocked by my speaker wire what the hell is that. Now I have the Bose amp running the front speakers and the rear 4 Inch But I disconnected the bose amp in the trunck and still noise in the subwoofer and the 6X9 amps. I have the Sub Outputs going to the Sub amp and the Front and rear outputs going to my other 4 ch amp. if I disconnect the 4 CH amp RCA Plugs it cuts my Subwoofer amp off. I am lost here peopke please help me. Also I tried unhooking my 4 ch amp and when I pulled the ground cable it shut my Sub Amp Off. the only way I can get anything to work is if I use the Branch off RCA Connectors that I connected to the Bose Stock amp and that runs one channel my 6X9s and it runns tham clear and without nosie. Oh yea and I also tried hooking up new RCA Cables run in the middle of the car in the open to see if it was noise from the RCAs. My 6X9s are run from the first 2 channels of the Amp to a set of crossovers and then split to the 2 separate inputs on my 6X9s